Recruiting Participants

Breast

• Letrozole in Treating Healthy Postmenopausal Women at High Risk for Breast Cancer

Colon

• Polyethylene Glycol for ACF Reduction and Biomarker Modulation in Individuals With Colorectal Cancer Risk
• Inositol in Preventing Colorectal Cancer in Patients With Colitis-Associated Dysplasia
• A Trial of Metformin for Colorectal Cancer Risk Reduction Among Patients With a History of Colorectal Adenomas and Elevated Body Mass Index

Esophagus

• Ursodiol in Treating Patients With Barrett Esophagus and Low-Grade Dysplasia
• Metformin Hydrochloride in Preventing Esophageal Cancer in Patients With Barrett Esophagus
• Erlotinib Hydrochloride in Treating Patients With Previously Treated Non-Small Cell Lung Cancer, Head and Neck Cancer, or Esophageal Cancer and Precancerous Lesions of the Lung

Head, Neck, Oral

• Pioglitazone for Oral Premalignant Lesions
• Erlotinib Hydrochloride in Treating Patients With Previously Treated Non-Small Cell Lung Cancer, Head and Neck Cancer, or Esophageal Cancer and Precancerous Lesions of the Lung

Lung

• Inositol in Preventing Lung Cancer in Current or Former Smokers With Bronchial Dysplasia
• Pioglitazone Hydrochloride in Treating Patients With Stage I, Stage II, or Stage III Non-Small Cell Lung Cancer
• Natural History of Lung Nodules Seen on CT Scans From Participants at High-Risk of Developing Lung Cancer
• Erlotinib Hydrochloride in Treating Patients With Previously Treated Non-Small Cell Lung Cancer, Head and Neck Cancer, or Esophageal Cancer and Precancerous Lesions of the Lung

Prostate

• Se-Methyl-Seleno-L-Cysteine or Selenomethionine in Preventing Prostate Cancer in Healthy Participants
• Metformin Hydrochloride in Treating Patients With Prostate Cancer Undergoing Surgery
• Study of Cholecalciferol and Daily Genistein (G-2535) Versus Placebo in Men With Early Stage Prostate Cancer

Biomarker & Dose-Finding Studies

• Dose-Finding Study 9cUAB30 in Normal Volunteers

Ongoing, Not Recruiting Participants

Breast

• Atorvastatin in Preventing Breast Cancer in Women at Increased Risk for Breast Cancer

Colon

• Erlotinib in Treating Patients With a History of Stage I, Stage II, or Stage III Colorectal Cancer or Adenoma

Liver

• S-Adenosyl-L-Methionine Disulphate P-Toluene-Sulfonate in Preventing Liver Cancer in Patients With Chronic Hepatitis C Infection

Skin

• Vitamin D Levels in the Skin of Healthy Subjects After Oral Supplementation

Biomarker & Dose-Finding Studies

• Resveratrol in Postmenopausal Women With High Body Mass Index

Closed
When results are published, the trial moves to publications.

Bladder

• Green Tea Extract in Treating Patients With Nonmetastatic Bladder Cancer

Breast

• 4-Hydroxytamoxifen or Tamoxifen Citrate in Treating Women With Newly Diagnosed Ductal Breast Carcinoma in Situ
• Acolbifene for Breast Cancer Chemoprevention

Colon

• Aspirin in Preventing Colorectal Cancer in Patients at Increased Risk of Colorectal Cancer

Esophagus

• Green Tea Extract in Preventing Esophageal Cancer in Patients With Barrett's Esophagus

Lung

• Modulation of Arachidonic Acid Metabolism by Chemopreventive Agents in Smokers

Prostate

• Finasteride in Treating Patients With Stage II Prostate Cancer Who Are Undergoing Surgery